pyobjc-core 安装问题

[Mikoyan]

pkg_resources.ContextualVersionConflict: (pyobjc-core 2.5.1 (/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC), Requirement.parse('pyobjc-core==4.0'), set(['pyobjc']))

出现了以下错误，重新安装pyobjc 卸载 按照版本安装均不管用 请问有遇到类似问题的童鞋吗